vibration of bar 中文意思是什麼

vibration of bar 解釋
桿的振動
  • vibration : n. 1. 振動,顫動;擺動;【物理學】振動。2. (心的)震顫。3. (思想情緒的)激動。4. 猶豫。adj. -al
  • of : OF =Old French 古法語。
  • bar : BAR = Browning automatic rifle 白朗寧自動步槍。n 巴爾〈南斯拉夫港市〉。n 1 棒,桿,條;棒狀物。2...
  1. In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test

    然後,對巖土工程領域至今尚未解決,甚至不為人注意的考慮地基變形的地基承載力問題進行了實用化的探討,提出了考慮地基變形的地基承載力上程計算方法;對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎(空間問題)的承載力界限荷載p _ ( 1 / 4 ) ,並與國內外土力學專著及地基基礎設計規范中的條形基礎(平面問題)的界限荷載p _ ( 1 / 4 ) ,進行了對比,從而定量上解釋了目前設計規范引用土力學承載力公式值偏於保守的這一情況;根據本文作者多年從事現場地基工程振動試驗及相關課題的研究工作,本文以截頭錐模型模擬地基,對地基(巖基)承載力的動測法進行了研究,為各類地基(包括巖基) ,匯總了動力分析和檢測川的參數:針對日前巖土工程界應用樁基設計規范中的難點? ?樁端巖基承載力的確定問題,從巖石室內單軸抗壓強度確定、基於彈塑性模型的有限單元法計算、土力學計算及深斤載荷試驗四方面進行了深入討論;本文作者根據多年現場載荷試驗的工程實踐,對深井荷試驗裝置的核心部分? ?反力裝置,設計了側壁支撐反力加載系統,該加載系統具有實用、簡便、穩定及安個等優點。
  2. The torsion bar spring is an important part in the suspension system and has the functions of force transfering impact alleciating and vibration attenuating

    扭力桿是汽車懸掛系統中一個重要的零件,起到傳遞力、緩和沖擊與振動的作用。
  3. In view of the vibration of hydraulically driven bar feeders for cnc lathes in oper ation, this paper analyzed the causes for vibration generation in details by case study and pre sentedthe corresponding solutions for each case

    詳細分析了數控車床液壓棒料送料器工作時產生振動的各種原因,並提出了相應的解決措施。
  4. Abstract : in view of the vibration of hydraulically driven bar feeders for cnc lathes in oper ation, this paper analyzed the causes for vibration generation in details by case study and pre sentedthe corresponding solutions for each case

    文摘:詳細分析了數控車床液壓棒料送料器工作時產生振動的各種原因,並提出了相應的解決措施。
  5. A brief introduction is described which indudes the state of the art of research and design about the trashracks of conventional and pumped - storage hydroelectric plants, the necessary to research the flow - induced vibration of the trashrack bar by use of hydro - elastricity similaymodel and the background of this study

    對抽水蓄能泵站攔污柵流激振動的研究狀況、設計方法,本研究課題的背景和採用水彈性模型研究柵條流激振動的必要性作了簡要說明。
  6. Through the retrofit design of the structural support of the porking bar in the original agitator, the vibration was eliminated, the operation of the agitator was stable and efficient, and the requirements of industry test was satisfactory

    通過對原攪拌裝置攪拌軸支撐結構改造設計,消除了振動,使其運轉平穩高效,同時滿足了工業試驗的需要。
  7. Vibration of bar

    桿的振動
  8. The natural vibration spectrum curve is measured and the critical velocity to induce trashrack bar galloping is calculated. the effect of bar spacing on the bar strain and the characteristics of the exciting force are discussed. by fatigue analysis it is obtained that the service life of weld at the fixed end of the bar is about 13

    分析了發電工況和抽水工況時的振源特性,討論了柵條凈距對柵條應變的影響,按鋼結構設計規范對柵條進行了疲勞計算, 1 ~ #測點處可視為不會發生疲勞破壞, 2 ~ #測點焊接處的疲勞壽命約為13 . 6年。
  9. The vibration shapes - separation - spectra - method and time - history method are used to analyze the dynamic response of the cable - bar structure under common earthquake. and the effects of the rise - to - span ratio and the mass distribution are studied

    本文分別採用反應譜法和時間歷程法對環狀索桿結構的地震響應作了較詳細的分析,研究了矢跨比、質量分佈對環狀索桿結構地震響應的影響。
  10. Firstly, it theoretically discusses the concurrent design between mechanical and control system, showing its significance. and we can improve the mechanical design such as morphology and mass - distribution to simplify the control design reduce the vibration of mechatronics system and improve the performance. secondly, four - bar linkages driven by motor and the robot hands are proposed to analyze the feasibility and necessity of concurrent design

    論文主要研究的內容是:對機電系統中機構與控制并行設計的方法(即如何把機構設計與控制設計相結合)進行了理論上的探討,指出通過改善機構的構型和對機構進行質量平衡能有效地簡化控制部分的設計、減小系統的速度波動、提高綜合性能。
  11. This paper introduces the development and present situation of vibration absorb technology in the world ; generally analysis the rubber - bearing ( rb ) and lrb " s operative mechanism, function and the calculation of parameter ; advance the concept of standardization to lrb ; on the basis of generally analyzing the connected factor such as the site category, the diameter of lead bar, the height of bearing, the designing carrying capacity, the span of bridge, the inherent period and the displacement of rb, determine the parameter, the absorbing vibration target, the method and the process of standardization to lrb ; then according to the two - step rule of resisting and defending earthquake, and combining with the response spectrum theory in the seismic vibration of bridge, make a lot of calculation and analysis of vibration absorb design to the real bridge collected and combined by finite element program ; at last, gives the result of standardization through diagram and explains to its usage

    本論文介紹了國內外減震技術的發展和現狀;綜合分析了普通板式橡膠支座和鉛銷橡膠支座的工作機理、性能及參數的計算;提出了鉛銷橡膠支座標準化的概念;在綜合分析場地土、鉛銷直徑、支座高度、設計承載力、橋梁跨徑、固有周期以及支座變位等影響因素的基礎上,確定了鉛銷橡膠支座標準化的參數、減震目標、方法和過程;並根據抗震設防兩階段原則,結合橋梁地震振動理論的反應譜法,運用有限元程序對收集和組合的實橋進行了大量減震設計的計算和分析;最後以圖表的形式給出了鉛銷橡膠支座標準化的結果,並說明了其使用方法。
  12. Laboratory measurement of the composite vibration damping properties of materials on a supporting steel bar

    支撐鋼棒上的器材的組合振動阻尼性能的實驗室測量
  13. The vibration magnitude can be reduced by applying the shock vibration absorber in boring process, the curves of the amplitude versus gap between the shock block and the hole in boring bar was gained by experiments with different cutting speed. the experiments show that the absorptive results is good when applies shock vibration absorber with suitable gap in boring process, while the vibration may be strengthened with unsuitable gap. 6figs., 2tabs., 3refs

    通過試驗研究,得到了在不同切削速度的情況下,沖擊塊與孔壁之間的間隙與切削振動幅值的關系曲線,研究說明,沖擊式減振器在適當的值范圍內減振效果明顯,但如果選擇不合適,則有可能使振動加強.圖6 ,表2 ,參3
  14. Secondly, on the basis of the theory of rayleigh - love bar, the longitudinal vibration of a large diameter end - bearing pile in saturated soil is investigated considering transverse inertial effect. the vibration of pile considering transverse inertial effect is different from the one not considering this effect significantly at a smaller slenderness

    2 、根據rayleigh - love桿理論,計及樁身的徑向變形,研究了飽和土中考慮橫向慣性效應的大直徑嵌巖樁縱向耦合振動理論,分別在考慮與不考慮橫向慣性效應下,比較了大直徑樁縱向振動的特性。
  15. At first, after the dynamic characteristics of the plane and the spatial supporting systems were studied, fore some steps fixed frequency and shape of vibration were gained. secondly, several design parameters which influence the dynamic characteristics of this kind system were discussed, including pre - tension value in the cable, cross - section of the cable, cross - section of steel - bar and form change. some applied decisions were found

    首先,對平面和空間索桁支承體系的自振特性進行研究,得到體系的前幾階固有頻率和振型形式;進而探討了索的預拉力、拉索截面面積、撐桿截面面積、形狀改變(撐桿長度l )等主要設計參數對體系自振特性的影響,得出了一些有益的結論,為體系設計和施工提供意見和依據;最後,對體系的風振特性進行了分析,用幕墻風荷載規范對幾種索桁支承體系形式進行風荷載計算。
  16. The vibration absorption effects of damping aluminum - alloys, zinc - alloys and damping alloy interlayer beam are tested through a four bar linkage mechanism and the test results are carried out a contrastive research with numerical analysis results, and it is found that response curves obtained by test are similar with those given out by numerical calculation

    以鉸鏈四桿機構為研究對象,測試了鋁基、鋅基阻尼合金及阻尼合金夾層梁的阻尼減振效果,並與數值分析結果進行了對比研究,結果表明實驗結果和數值計算結果基本吻合。
  17. Test methods for the properties of piezoelectric ceramics. transverse length extension vibration mode for bar

    壓電陶瓷材料性能試驗方法長條橫向長度伸縮振動模式
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